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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10001674 B1

PDFFull Text
Date of Patent:
Jun. 19, 2018

Filed:

Aug. 08, 2016

Brightness enhancement film, optical sheet member, and liquid crystal display device

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Jun Takeda, Kanagawa, JP;

Yuki Matsuda, Kanagawa, JP;

Nobuyuki Akutagawa, Kanagawa, JP;

Kotaro Yasuda, Kanagawa, JP;

Katsufumi Ohmuro, Kanagawa, JP;

Hideyuki Nishikawa, Kanagawa, JP;

Akiko Watano, Kanagawa, JP;

Yukito Saitoh, Kanagawa, JP;

Mitsuyoshi Ichihashi, Kanagawa, JP;

Wataru Hoshino, Kanagawa, JP;

Hiroyuki Ishikawa, Kanagawa, JP;

Assignee:

FUJIFILM Corporation, Tokyo, JP;

Attorneys:

Edwards Neils LLC

Jean C. Edwards, Esq.

Primary Examiner:

Geraldina Visconti

Int. Cl.
CPC ...
G02F 1/1333 (2006.01); G02F 1/13363 (2006.01); B29D 11/00 (2006.01); G02B 5/30 (2006.01); C09K 19/18 (2006.01); C09K 19/20 (2006.01); C09K 19/36 (2006.01); C09K 19/38 (2006.01); C09K 19/50 (2006.01); G02F 1/1337 (2006.01); C09K 19/24 (2006.01); C09K 19/34 (2006.01); C09K 19/54 (2006.01); C09K 19/56 (2006.01); C09K 19/60 (2006.01); G02F 1/1335 (2006.01); C09K 19/04 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13363 (2013.01); B29D 11/00644 (2013.01); B29D 11/00788 (2013.01); C09K 19/18 (2013.01); C09K 19/2007 (2013.01); C09K 19/2014 (2013.01); C09K 19/24 (2013.01); C09K 19/3486 (2013.01); C09K 19/36 (2013.01); C09K 19/3823 (2013.01); C09K 19/3852 (2013.01); C09K 19/50 (2013.01); C09K 19/544 (2013.01); C09K 19/56 (2013.01); C09K 19/601 (2013.01); G02B 5/3016 (2013.01); G02F 1/13362 (2013.01); G02F 1/133617 (2013.01); G02F 1/133621 (2013.01); G02F 1/133784 (2013.01); G02F 1/133788 (2013.01); C09K 2019/0429 (2013.01); C09K 2019/0448 (2013.01); C09K 2019/188 (2013.01); C09K 2019/2078 (2013.01); C09K 2019/3408 (2013.01); G02F 1/133536 (2013.01); G02F 1/133602 (2013.01); G02F 1/133615 (2013.01); G02F 2001/133507 (2013.01); G02F 2001/133545 (2013.01); G02F 2001/133614 (2013.01); G02F 2001/133638 (2013.01); G02F 2202/022 (2013.01); G02F 2202/36 (2013.01); G02F 2203/05 (2013.01); G02F 2413/01 (2013.01); G02F 2413/05 (2013.01);
Abstract

Provided are a brightness enhancement film including a λ/4 plate, and a reflection polarizer, in which the reflection polarizer includes at least two light reflection layers formed by immobilizing a cholesteric liquid crystalline phase, one light reflection layer of the reflection layers is a layer formed of a polymerizable liquid crystal composition containing a rod-like liquid crystal compound, and the other light reflection layer is a layer formed of a polymerizable liquid crystal composition containing a disk-like liquid crystal compound, and an optical sheet member including the brightness enhancement film, and a liquid crystal display device including the optical sheet member. The brightness enhancement film of the present invention has high brightness and is able to suppress an oblique change in the shade at the time of being incorporated in a liquid crystal display device.

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